Core covering apparatus



Sept. 1, J. p, SHORROCK I 2,052,901

CORE COVERING APPARATUS INVENTOR, James I? Jhr/06%,

BY @@OM- ATTORNEY.

Sept. 1,1936. J, p. SHORROCK 2,052,901

CORE COVERING APPARATUS Filed June 8, 1935 4 Sheets-Sheet 2 I i f' UML d Lf j ,'v

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Y' INVENTOR, Jeff/f Jaffw,

ATTORNEY.

CORE covERING APPARATUS Filed June 8, 1935 I 4 Sheets-Sheet 3 ATTORNEY.

Sept. l, l936.`

INVENTO ATTORNEY.

Patented Sept. 1, 1936 Unirse STATES PATENT OFFICE CORE CQVERING' APPARATUS Application June s, 1935, serial No. 25,639

Claims.

Thisk invention relates to improvements in Vcorecovering apparatus and is directed more-particularly to improvements in apparatus for covering relatively fine cores such as rubber threads 5 and. the like with yarn of silk, rayon, composition, etc.

.The principal objects of the invention are directed vto the provisionY of improvements in corecovering apparatus of the typedisclosed in U. S. Letters Patent to Raymond `E. Getchell No. 1,970,228 Vof August 14, 1934.

According to one special feature of the invention an apparatus for covering cores is provided which by reason of its novel construction and arrangement is capable of covering Very small cores of 'rubberorysimilar materials with yarn or various materials to produce covered cores which are uniform inall important respects.

In the covering of such'cores as rubber threads in the smaller sizes it is `necessary that the covering-'layers bewound thereon in a uniform manner and at a uniform tension thereby to produce a covered core which is properly balanced anduniformly covered.

y According to this invention 'therefore in order to produce the desired results, the covering yarns are carried by spindles which are disposed Within cups having travelers at their upper sides, the cups rotating with the spindles and yarn packages whereby the traveler rotates relative to the cup. only to accommodate unwinding of the yarn from the package, thereby providing the desired tension. for the yarn. In this way the yarn, Where smaller sizes are concerned, is not subjected. to undue tension While the windage is reduced, `whereby uniform winding is facilitated and. breaks and injury to the product are greatly reduced if not obviated.

.According to a further feature of the invention', the apparatus is not only adapted to cover` cores of the class referred to but, as distinguished from winding the finished core on a drum, means is provided to form the finished and'covered core into the form of a skein. The skein is formed on a reel or skein-forming device which is frictionally driven and not only is it possible to'produce a perfect skein'which may beeasily'inspected andV removed, but it is possible to temporarily release the skein-forming devicey from'its driving' connection to facilitate inspection of the yarn -being led thereonto to determine itsfbalance, etc.

*Various and numerous other novel objects and advantages of the'invention will be observed from the.'following;'.descriptiort.ofA theV preferred' form' thereof, reference being had to the accompanying drawings, wherein:

Fig. l is a sectional elevational View of the upper part of an apparatus embodying the novel features of the invention;

Fig. 2 is a sectional elevational view of the lower partof the apparatus, the said Figures` 1 and 2- being a continuation of one another;

Fig. 3 is an end elevational view of a machine withl parts brokenaway for clearness; 10"

Fig. 4 is a plan view of the skein-forming part of therapparatus;

Fig. 5 is a sectional elevationalview through one of thev package cups;`

Fig. 6 isa fragmentary elevational and sec- 15 tional view on the line 6--6 of Fig. 5 to explain certain features of the invention; and Y Fig. '7 .is a sectional plan view on the line 1 1 of Fig. 5.

Referring now to the drawings more in detail 20 the invention will be fully described.

In Figs. 1 and 2 thereis shownA an end frame 2. There are at least twoof saidend frames which are spaced apart and arranged to support the apparatus of lthe invention. A longitudinal 25 shelf 4 extends between the end frames adjacent their lower sides and` thereabove there is another similar member 6. Above the members there isa rail. 8 and uppermost railV l0. These, of course, are suitably connected to the end 30 frames to space and tie themv together and provide a strong rigid structure.

Upper and lower spindle units indicated generally by I4.and I6 are provided, there being two units or a pair of units to one set. There 35 may be as many sets of these units as may be desired along each side of the `rails and it will suffice to merely'explain the construction of one complete unit. y 4

A lower shaft 20 is provided on which is an 40 unwinding drum 22. The shaft 20 is driven by means as will later appear. An operating rod 24 is arranged for reciprocation upand down and its lower end carries a pair of spaced bracket members such as 26 having slots 28 on their outer 45 ends.

A core carrier 30 which may be in the form of a spool has trunnions 32 in the slots of brackets 26. The core to b'e covered is wound on the barrel ofV the' spool 3B andrests upon the un- 50 winding drunr 22 so that as the drum rotates the member 3B is rotated so that the core is unwound.

Lower and upper'motorsw are carried by the rails S'and. `Y Hollowspindles 36 extend upwardly from thefmotorsso that acore C ledT from the 55 spool 30 extends through a lower guide 40 upwardly through the lower motor and its spindle and then upwardly through the upper motorand its spindle.

An upper rotatable shaft 44 extends between the end frames andit has xed thereto a take-up drum 46 while spaced arms 48 thereabove are fixed to the rod 24. These arms 48 haveslots 50 in the ends thereof. There is a lower roll 52 arranged to rest on the drum 46 and an upper roll 54 rests on the lower roll 52. Trunnions as shown are associated with the rolls 52 and 54 which rotate in the slots 50 of the brackets 48 to permit removal and insertion of the rolls 52 and 54 in the said arms or brackets. j Y

An operating lever 60 is pivoted at 62, ypreferably just below the longitudinal rail 8, and its end 64 is disposed between members 66 on rod 24.

As the lever 60 is swung between the upper posi- 1 tion shown and a lower position the rod is moved upwardly.` .Reverse movements of the lever 60 will move the rod into reversel directions.

vBrake levers 68 are associated' with the motors 34and when the rod 24-moves downwardly it acts on the levers 68 to release brakes associated with the motors. When the rodV 24 moves upwardly levers68 swing upwardly allowing a spring mechanism to automatically function to operate the brakesr associated with-the motors after vthe manner describedin theI Getchell patent above referredto. Y Y Y Y l Yarn packages indicated by P in Fig; 5 have central cores"|0-vvhichslipy over the spindles 36. Slots 12 in the lower ends of the cores receive driving pins` 14 associated with the lower walls 16 ofspindle lcups 86. Extending upwardly from the lower walls '|6 there are cylindrical side walls 'H8 forming the *cups whichV are preferably relatively thin and made of relatively light material to reduce weight. -Covers are provided for the upper sides of thev cups and these have inwardly extending parts 82 and downwardly extending peripheral flanges A34. Y One o-r more pins such as 86 may be carried by the flanges 84 and slots such as 88 are provided adjacent the upper edge ofthe Vside walls to receive vthe pins lwhereby the caps may be removably associated with the cups. f A guideway 90 for a traveler is provided on the covers' 82 adjacent the upper endsof the package andl ak traveler such as 92 is movable therearound. T hetraveler being in the form of a ring or loop suchvas is usual in apparatus of this kind, is adapted to receive yarn from the packages.Y Y

vShafts 20 and 44Y are'driven in the-following manner. Outside of one end flange 2 there are upper and lower gear boxes |00 and |02. A motor |04 has upper and lower shafts |06 and |08 all as shown in Fig. 3. The upper shaft carries a worm H0 in mesh with the worm gear ||2 which is fixed to a shaft H3 of the gear box |00. The lower shaft |08 has a worm |20 in mesh with a worm'v gear |22-of a shaft |24 and other gears |26 serve to operatively connect the shaft 20 with the shaft |24.A

The gear arrangement referred to is arranged so that the lower shaft andrup'per shaft 44 are driven in such a ratio that the core when in the form of .a rubber thread'is subjected to a uniform constant Vtension or stretch vas it is unwound by drum 22 and taken-up by drum 4 y When the-rod 54 is -in its lower position, the yarn on the spool 30 is in contact with the unwinding drum 'and the other rou 52 is in Contact Y with the take-up drum which drums as stated being driven at the desired relative speeds will tension the core as may be desired. As the motors are operated to rotatertheir spindles and cups connected therewith, the yarn packages areV rotated with the spindles for winding the yarns thereof o-nto the core C, the yarns passing through the travelers are tensioned more or less according to the weight of the travelers.

Because the yarns as they extend from the` "packages to the travelers are disposed within theV cups rotating with the packages windage is large- .ly obviated and by the reduction of the friction between thetravelers and their guide rings, the

. yarns are not unduly tensioned but are tensioned uniformly Vto the desired degree wherefore the yarns are wound about the core uniformly. Guides |36 and |32 are provided to carry the-yarn and their upper or outer ends are disposed above the spindles toY properly guide the core and its covering.

`Brackets |46 carried by the upperrail |0 have outer spaced ends |42 as shown in Fig. 4. Rollers |44 are rotatable in the parts |42. A skein reel |50 Vhas saddles |52 on the ends of arms .|54 and acentral shaft |56 thereof has on opposite yends pulleys-or rollers |56 which are adapted torest on adjacentrollers |44. VThe particular form of skein-forming device is shown and described inV my pending application Serial No. 25,640 filed June 8, 1935, but any skeinforming device may-'be used which is adapted to beV supported and rotated'by a pair of adjacent rollers such as |44. y

Pulley |60 is associated with pairs Aof aligned rollers |44 and is driven by means` of a belt |62 passing thereover'and over pulleys |64 of shaft Y Y l 66. belt |62 drive a pair of aligned rollers |44 and the pulley |69 so that the skein-forming device is frictionally driven to wind up the covered core.

A traversing bar |80-has a guide for each skeinforming device such as |82 and this traverses back and forth vto lead ther yarn back and forth as it is taken up by the skein-forming device. Y Y

As shaft |66 rotates, the pulleys |64 and A lifter or elevator |90 reciprocable up and down in the brackets |42'and disposed below the rollers |58 of the skein-forming device is actuated by means of a rod |92 pivoted at |94 and which hasV its end associated with the upper end of rod 24.'

kAs the rod 24 is elevated'the elevator |90 is moved Vupwardly to'lift the skein-forming device upwardly so that it is not frictionally rotated during the time the roll 52 is elevated from the takew up drum 46 and the supply spool Y30 is elevated above the drum 32.

In the Voperation of jthe apparatus the core( travels from the lsupply spool 30 upwardly through the spindles, overV the take-up drum 46 and through the rollers 52 and 54 and onto the skein-V forming device. The skein-forming device serves to takeup the covered core while the motor spindles rotate to supplyl the covering, the core being tensioned ,all the Ywhile to the desired tension.

VDuring the operation of theapparatusit is posthe machine the rod 24 is elevated. Thus by elevating the rod 24 the motor brakes function, and simultaneously the rod moves the supply spool 30 upwardly from the drum 22 and the roll 52 upwardly from the drum 46 and moving the skein-forming device upwardly so that it is no `longer driven by the rolls |44. In this way all the parts come to rest simultaneously.

While I have described the invention in great detail and with respect to a preferred form thereof, it is not desired to be limited thereto since many changes and modifications may be made therein without departing from the spirit and scope of the invention. What it is desired to claim and secure by Letters Patent of the United States is:

l. The combination in apparatus of the class described of, coaxial hollow spindles, means for driving the same, means for feeding a core to said spindles, and means for winding up a core including, supperting rolls, means to drive one of said rolls, a skein reel having saddles and a roll at a side thereof resting on said rolls whereby the reel is supported by said rolls and frictionally rotated by said one roll, all adapted and arranged whereby an operator may grasp the reel to arrest its rotation or rotate it reversely to the normal direction of rotation.

2. In an apparatus for covering a core with yarn comprising in combination, co-axial upper and lower hollow spindles for yarn packages, means for driving the same, means for feeding a core to said spindles and means for Winding a covered core into skeins as it comes from said upper spindles including, a plurality of supporting and driving rolls, means for driving certain of said rolls, a skein forming device having arms and saddles about which a covered core may be wound and rolls at the sides thereof for resting on said supporting and driving rolls whereby the skein device is supported and frictionally driven in one direction for skeining a core from said upper spindles and is adapted to be manually rotated in an opposite direction to unwind the covered core and provide a loop of covered core between said upper spindle and skein-forming device for inspection purposes.

3. In an apparatus for covering a core with yarn comprising in combination, co-axial upper and lower hollow spindles for yarn packages, means for driving the same, means for feeding 4a core to said spindles and means for winding a covered core into skeins as it comes from said upper spindles including, a plurality of supporting and driving rolls, means for driving certain of said rolls, a skein forming device having arms and saddles about which a covered core may be wound and rolls at the sides thereof for resting on said supporting and driving rolls whereby the skein device is supported and frictionally driven in one direction for skeining a core from said upper spindles and is adapted to be manually rotated in an opposite direction to unwind the covered core and provide a loop of covered core between said upper spindle and skein-forming device for inspection purposes, the means for driving said rolls including driven members associated therewith, a drive shaft carrying driving members and connections between said members.

4. In an apparatus for covering a core with yarn comprising in combination, co-axial upper and lower hollow spindles for yarn packages, means for driving the same, means for feeding a core to said spindles and means for winding a covered .core into skeins as it comes from said upper spindles including, a plurality of supporting and driving rolls, means for driving certain of said rolls, a skein forming device having arms and saddles about which a covered core may be wound and rolls at the sides thereof for resting on said supporting and driving rolls whereby the skein device is supported .and frictionally driven in one direction for skeining a core from said upper spindles and is adapted to be manually rotated in an opposite direction to unwind the covered core and provide a loop of covered core between said upper spindle and skein-forming device for inspection purposes, and means for moving the skein-forming device away from said rolls.

5. In an apparatus for covering a core with yarn comprising in combination, co-axial upper and lower hollow spindles for yarn packages, means for driving the same, means for feeding a core to said spindles and means for winding a covered core into skeins as it comes from said upper spindles including, a plurality of supporting and driving rolls, means for driving certain of said rolls, a skein forming device having arms and saddles about which a covered core may be wound and rolls at the sides thereof for resting on said supporting and driving rolls whereby the skein device is supported and frictionally driven in one direction for skeining a core from said upper spindles and is adapted to be manually rotated in an opposite direction to unwind the covered core and provide a loop of covered core between said upper spindle and skein-forming device for inspection purposes, the said rolls being arranged in pairs and one each of said pairs constituting the driving rolls.

JAMES P. SHORRGCK. 

